Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 16:51

General

  • Target

    c5fb479351f4f11f64ef25d1efbf2332ecee7c61894e72db4e5546e44597be9e.exe

  • Size

    2.3MB

  • MD5

    1e38cb641744d078afaf932331b1efe9

  • SHA1

    1633fcf90396375f813f2fce439027e1f58c0f25

  • SHA256

    c5fb479351f4f11f64ef25d1efbf2332ecee7c61894e72db4e5546e44597be9e

  • SHA512

    97aa494d312e71f603d1c76dac25e06c0078333c9ed964271cc52c50ba190be7fc8a05d74f278c5f703cf4cfa3ab992dc2cfbadfb8e634bf44ef9cf0765fd0c4

Score
10/10

Malware Config

Signatures

  • ParallaxRat

    ParallaxRat is a multipurpose RAT written in MASM.

  • ParallaxRat payload 1 IoCs

    Detects payload of Parallax Rat, a small portable Rat usually digitally signed with a Sectigo certificate.

  • Drops startup file 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5fb479351f4f11f64ef25d1efbf2332ecee7c61894e72db4e5546e44597be9e.exe
    "C:\Users\Admin\AppData\Local\Temp\c5fb479351f4f11f64ef25d1efbf2332ecee7c61894e72db4e5546e44597be9e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Users\Admin\AppData\Local\Temp\c5fb479351f4f11f64ef25d1efbf2332ecee7c61894e72db4e5546e44597be9e.exe"
      2⤵
        PID:1828
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Users\Admin\AppData\Local\Temp\c5fb479351f4f11f64ef25d1efbf2332ecee7c61894e72db4e5546e44597be9e.exe"
        2⤵
          PID:3040
      • C:\Windows\system32\MusNotifyIcon.exe
        %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
        1⤵
        • Checks processor information in registry
        PID:3916
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k NetworkService -p
        1⤵
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        PID:2308
      • C:\Windows\system32\MusNotifyIcon.exe
        %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
        1⤵
        • Checks processor information in registry
        PID:3672
      • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
        C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
        1⤵
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:1428
      • C:\Windows\SysWOW64\DllHost.exe
        C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
        1⤵
        • Drops startup file
        PID:364

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3040-135-0x0000000077AB2000-0x0000000077AB3000-memory.dmp

        Filesize

        4KB

      • memory/3040-136-0x0000000002EE0000-0x0000000002EE1000-memory.dmp

        Filesize

        4KB

      • memory/3040-137-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4048-130-0x00000000025C0000-0x000000000263B000-memory.dmp

        Filesize

        492KB

      • memory/4048-131-0x0000000077AB2000-0x0000000077AB3000-memory.dmp

        Filesize

        4KB

      • memory/4048-134-0x0000000002640000-0x00000000027E3000-memory.dmp

        Filesize

        1.6MB